ROOT PUMP

• Main Authors: TAKANI NAOKI, HIRANO TAKAYUKI, MASAKI DAISUKE, KASHIWA SHINTARO
• Format: Patent
• Language: English; Japanese
• Published: 01.08.2019
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

To perform a stable supply of oil to a seal member even if a spacer arrangement work is being facilitated.SOLUTION: A first outer layer 61 and a second outer layer 62 are arranged alternatively in a peripheral direction of the second spacer 35 and they are spaced apart at different positions to each other at a central axis line of the second spacer 35. Further, a width of the central axis direction of the second spacer 35 at its outer peripheral surface is shorter than a length in a rotating axis line direction of a driving shaft 16 of an opening part 54e of the second oil supply passage 54 at an inner peripheral surface 32b of a second bearing storing recess part 32 at whatever location may be applied to include either the first outer layer part 61 or the second outer layer part 62.SELECTED DRAWING: Figure 15 【課題】スペーサの配置作業を容易なものとしつつも、シール部材へオイルを安定供給すること。【解決手段】第１外層部６１及び第２外層部６２は、第２スペーサ３５の周方向に交互に配置され、第２スペーサ３５の中心軸線において互いに異なる位置にあるよう離れている。さらに、第２スペーサ３５の外周面における中心軸線方向の幅は、第１外層部６１や第２外層部６２を含めどの部位においても、第２軸受収容凹部３２の内周面３２ｂにある第２油供給通路５４の開口部５４ｅの駆動軸１６の回転軸線方向における長さよりも短い。【選択図】図１５